Affected: golang.org/x/net/html

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.

Affected: Go: github.com/moby/spdystream

The SPDY/3 frame parser in spdystream does not validate attacker-controlled counts and lengths before allocating memory. A remote peer that can send SPDY frames to a service using spdystream can cause the process to allocate gigabytes of memory with a small number of malformed control frames, leading to an out-of-memory crash.   Three allocation paths in the receive side are affected: 1. **SETTINGS entry count** -- The SETTINGS frame reader reads a 32-bit `numSettings` from the payload and allocates a slice of that size without checking it against the declared frame length. An attacker can set `numSettings` to a value far exceeding the actual payload, triggering a large allocation before any setting data is read.   2. **Header count** -- `parseHeaderValueBlock` reads a 32-bit `numHeaders` from the decompressed header block and allocates an `http.Header` map of that size with no upper bound.   3. **Header field size** -- Individual header name and value lengths are read as 32-bit integers and used directly as allocation sizes with no validation.   Because SPDY header blocks are zlib-compressed, a small on-the-wire payload can decompress into attacker-controlled bytes that the parser interprets as 32-bit counts and lengths. A single crafted frame is enough to exhaust process memory. ## Impact  Any program that accepts SPDY connections using spdystream -- directly or through a dependent library -- is affected. A remote peer that can send SPDY frames to the service can crash the…